Reinforcing Steel UPDATED ACTUAL
Questions and CORRECT Answers
what must be large enough and in the right places to accommodate building movement from
earthquakes? - CORRECT ANSWER✔✔- A:Gaps or joints between cladding
Why: The cladding on the outside of some buildings can sustain damage and even fall off if it
does not allow the building to flex when the ground shakes. Precast concrete cladding, with
or without stone facing, is heavy. The steel connections holding it to the building must be
strong enough to allow the building to move in an earthquake without failing. In addition,
gaps or joints between cladding units must be large enough and in the right places to
accommodate building movement.
what do architectural drawings display - CORRECT ANSWER✔✔- A:General Outlines of
finished appearance, Plans showing room arrangements,
Building Elevations
Why: Architectural drawings show general outlines of the finished appearance of the building
in elevations, plans and sections completely dimensioned. They show the relationship of the
various kinds of materials such as concrete, steel, brick, wood and stone to each other, plans
showing room arrangements with sections and elevations to illustrate details, finishes such as
plaster or tile walls, ceilings, floor surfaces, fixtures, etc. In short, architectural drawings are
those on which all other drawings such as structural, mechanical and electrical are based.
What do mechanical drawings display? - CORRECT ANSWER✔✔- A:Piping
Why: Mechanical drawings show generally all piping, heating and air condition ducts, and
mechanical equipment.
As a rule, what is not included in placement drawings? - CORRECT ANSWER✔✔- A:Does
not show Dimensions but shows Bar placement, Reinforcement placement
Why: Electrical drawings show all electric wiring, control panels, motors, electric pumps, etc.
The Ironworker is not normally concerned with all of these but does need to refer at times to
structural and architectural drawings. For example, placement drawings do not as a rule show
complete building dimensions since all of the formwork is presumed to be in place before the
,Ironworker starts the work. Where necessary, structural and architectural drawings should be
consulted for dimensions and other information which might be needed to supplement the
placement drawings.
What is bar placing drawing used for? - CORRECT ANSWER✔✔- A:To prepare a bar list
Why: The Bar Fabricator uses the structural and architectural drawings to prepare bar placing
drawings. At times, it may be necessary to refer to other drawings for information. A bar
placing drawing contains only the information required by the Bar Fabricator to prepare bar
lists and by the Ironworker to put the bars in place on the job.
Who determines the amount of concrete protection that is needed for each part of the project?
- CORRECT ANSWER✔✔- A: Engineer
Why: The proper embedment of bars in the concrete is very important. The Engineer
determines the amount of concrete protection for each part of the project and bases the design
on these cover requirements, taking into consideration the requirements of building codes,
fire hazards, and possibility of corrosion and exposure to weather.
When reading plans, how are the columns represented? - CORRECT ANSWER✔✔- A:
Rectangles
Why: The exterior solid and parallel dash lines on the plan view show the floor bearing on
the wall, except where beams are indicated. The supporting columns are indicated by small
rectangles, the numbered circle adjacent to them is the column mark or number. The beams
are shown as either two parallel solid lines or combination of dashed and solid lines. The
beam mark or reference number appears alongside the beam and these numbers usually
follow from the structural drawing and in sequence. The letter B is used for beams.
How are joists represented in a set of plans? - CORRECT ANSWER✔✔- A: Solid lines
Why: The joists are shown in solid lines as this is standard practice in the industry.
Rectangular openings are indicated by cross diagonal lines. Midway in the longer spans are
double horizontal lines indicating a distribution rib; the Engineer shows this on the structural
drawing when required. The joist mark or reference number (such as 1J2) is shown for a
group of identical joists and generally follows the structural drawing but with letter suffixes
, (such as 1J2A) to allow for variations in the reinforcement for a so-called "typical" joist. The
letter J is used for joists.
What is another name for slab reinforcement? - CORRECT ANSWER✔✔- A: Temperature
reinforcement
Why: Slab reinforcement is used to control cracking in the concrete and is called temperature
reinforcement. These temperature bars are indicated by short horizontal lines with arrows to
show the extent covered.
What do Typical Placing Drawings show the Ironworker? - CORRECT ANSWER✔✔- A:
Arrangement of bars in joists, bars in beams, and bars in distribution ribs
Why: Sections - Typical Placing Drawings show the Ironworker the general arrangement of
bars in beams, joists, distribution ribs and slabs over the joists. The Ironworker would use
these in conjunction with framing plan and the beam and joist schedules. The section entitled
"Typical Joist Construction" shows a number of details about the joists.
What is the schedule used for? - CORRECT ANSWER✔✔- A: To aid in correctly positioning
the bars
Why: A schedule is a useful method for presenting details of bars for a group of similar items,
such as a group of beams, joists and columns. The bars can be described clearly and
compactly in a schedule. The schedule is usually used in connection with typical details, to
aid in correctly positioning the bars in the forms. Schedules can be arranged in different
formats, according to the ideas of the individual Detailer, and sometimes the nature of the
job, but an explanation of the Beam Schedule should help the Ironworker to a better
understanding of how to read and interpret one.
What should the Ironworker look over each placing drawing for? - CORRECT
ANSWER✔✔- A: Special notes
Why: The Ironworker should look over each placing drawing for any special notes.
Sometimes it is not possible to show every bit of information on the drawing itself and,
instead, a simple note could cover a typical condition rather than repeating it over and over
again on the drawing. One example would be notes of special instructions to the Ironworker
explaining the sequence in placing bars: that is, which layer of bars is to be placed first,
